Nulo's Challenger Gamebird Quarry Duck, Turkey, & Guinea Fowl Recipe Dog Food is made from ethically-sourced ingredients. Nulo prides itself on choosing sustainability – to give the world around us a chance to heal and renew. and believes peak nutrition doesn’t have to be at the expense of our environment.  FEATURES AND BENEFITS Low-glycemic organic ancient grains GanedenBC30 probiotic advantage for digestive & immune support  Lower carbohydrates Omega-3 and Omega-6 fatty acids for your pet's skin and coat Balanced for all life stages